Lewiston Flag

Lewiston

County Seat:
Yes
Area (mi²):
17.469
State:
Idaho

Lewiston is a city located in Nez Perce County, Idaho. Lewiston has a 2025 population of 35,230. It is also the county seat of Nez Perce County. Lewiston is currently growing at a rate of 0.56% annually and its population has increased by 2.88% since the most recent census, which recorded a population of 34,245 in 2020.

The average household income in Lewiston is $90,055 with a poverty rate of 13.32%.The median age in Lewiston is 39.7 years: 38.9 years for males, and 40.1 years for females.

35.2K
Total Population
2,017
Density (mi²)
197 0.56%
Growth

Lewiston Population

Lewiston Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Lewiston includes 91.18% White, and smaller percentages for Native American, Asian, other race, Native Hawaiian or Pacific Islander, Black or African American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White31,43191.18%
Two or more races1,8265.3%
Native American4581.33%
Asian3350.97%
Other race2880.84%
Native Hawaiian or Pacific Islander1010.29%
Black or African American320.09%

Lewiston Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lewiston's average per capita income is $47,614. Household income levels show a median of $71,047. The poverty rate stands at 13.32%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$102,140-
Families$91,565$108,529
Households$71,047$90,055
Non Families$37,165$54,632

$47,614

Average Income

$71,047

Median Household Income

13.32%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)